Chengdu InnoThings Technology Co., Ltd.

Any device whose MAC address begins with B8:89:81 has a network interface built by Chengdu InnoThings Technology Co., Ltd.. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

B8:89:81

Organization

Chengdu InnoThings Technology Co., Ltd.

Address

West Port Technology Enterprise Incubator Park Chengdu Sichuan CN 610000

Source

IEEE OUI registry

Have a full MAC address? Look it up— we'll also tell you if it's a randomized (private) address rather than a real manufacturer prefix.